PRO-MIX HP AGTIV REACH is perfect for growers that require a growing medium with good drainage, high air porosity and low water retention. The combination of fibrous Sphagnum peat moss and a high percentage of coarse perlite makes this formulation ideal for growers who require a growing medium product that is adapted to their needs for watering flexibility and crop seasonality. PRO-MIX HP AGTIV REACH contains a beneficial endomycorrhizae that improves plant growth.